Ahh ok, I understand completely, I have considerably less room and I am going to have a terrible 4% gradient for it, although half (or more) of my layout will be covered with late 50's early 60's industry and suburbia so it will be very well hidden and i'm planning on having 200mm of space under there (plenty of room to fix a dry joint or a bung point motor). Not to sound like resounding gong but absolutely love Peterborough North, You are an inspiration to us newbies to settle down and put more planning, effort and detail into our modelling rather than jumping in head first wanting to just run trains.
Jules